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C'.4.1 Functions
Functions are treated more deeply than in the first year.  Students describe and compare various families of functions.   
Instructional Days
(suggested)

30 - 35 days
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a. Review function notation, graphs, linear functions, and slope-intercept form; quadratic functions and vertex form.9-11 
b. Identify and use direct variation and step functions, reinforced with problems from science, economics, news reports, etc. 7-8 
c. Domain and range; end behavior for some rational and exponential functions.5-6 
d. Composition of functions. 4 
e. Define inverse functions (illustrated by simple examples).3-4 
Review and testing2

Benchmarks Ideas From the field Rich Problems Chapter Resources

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